
Field service for the uniquely broken.
Mobile heavy equipment repair with diesel, hydraulic, welding, and field diagnostics support across Utah.
Where your downtime gets handled.
Contractor yards, roadside jobs, remote sites, and machines stranded in the field. Fullstack Mechanics is built for service where the equipment actually breaks.

One call. An entire repair stack.
Diagnostics, dispatch, partner coordination, and hands-on field repair support in one workflow. We built the homepage around the source theme’s living-track system, but the content is now entirely mechanic-specific.

Mobile heavy equipment repair
On-site diagnostics and repair
- Excavators, skid steers, loaders, dozers
- Emergency breakdown response
- Hydraulic, diesel, electrical support

Hydraulic system service
Hoses, cylinders, valves, pumps
- Leak tracing and pressure diagnostics
- Cylinder reseal and line replacement
- Field-ready repair trucks

Diesel diagnostics
Fault codes, no-starts, drivability
- Top-end, cooling, and sensor issues
- CAT and mixed-fleet troubleshooting
- Repair planning with minimal downtime

Welding and fabrication
Structural fixes in the field
- Cracks, reinforcement, and bracket repairs
- Custom fabrication for uptime needs
- On-site support when shop transport is not practical
Built for comfort if your comfort is uptime.
Share the machine, symptoms, and jobsite. We review the issue, route it to the right technician, and keep the scope clear before wrenches start moving.
- Machine type, issue, and location first
- Availability and urgency reviewed quickly
- Field repair coordinated with the right partner

Community, translated into field mechanics.
This site is a dispatch layer on top of real independent technicians. Featured partners like John represent the kind of mobile experience the network is built to route: experienced, responsive, and comfortable solving problems on-site.
Clear diagnostics
Problems get scoped clearly before work expands. No vague hand-waving, no ornamental estimates.
Field execution
Repair plans are built around real jobsite constraints, not ideal shop conditions.
Contractor communication
Dispatch, arrival expectations, and scope changes stay visible so work keeps moving.

Bobcat Fuel System Service
On-site fuel filter and water separator replacement on a Bobcat S770 skid steer.

Excavator Hydraulic Repair
Field hydraulic hose and fitting repair on a CAT excavator mid-project.

Track & Undercarriage Work
Track link inspection and undercarriage tightening on a tracked machine.

Hydraulic Cylinder Service
Hydraulic cylinder rod seal replacement performed in the field.

CAT ET Diagnostic Scan
On-board diagnostic scan using CAT ET to pull fault codes and live sensor data.

Diesel Engine Top-End Rebuild
Cylinder head removal and gasket replacement on a heavy equipment diesel engine.
“FullStack Mechanics came out to our jobsite in West Jordan and fixed our CAT excavator hydraulic issue the same day. These guys are the real deal for mobile field service.”
“We use this company for all our repairs on our equipment for our jobsites. They are extremely responsive and always make time to get our equipment up and running fast! Highly recommend!”
“Needed on-site Bobcat repair in Salt Lake City for our mini excavator. John arrived quickly and had the hydraulic cylinder resealed and back in action within hours. Great price and even better service.”
“These guys are great! They always work us in and are fairly priced!”
“Great service. Showed up and got right to work no bs time wasting. Got me back on the road when everyone else said they couldn’t help me or were too busy. Definitely recommend”